ST5EP502

Series:	ST5
Packaging:	Bulk
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Resistance:	5 kOhms
Power (Watts):	0.25W, 1/4W
Tolerance:	±10%
Temperature Coefficient:	±100ppm/°C
Number of Turns:	14
Adjustment Type:	Side Adjustment
Resistive Material:	Cermet
Mounting Type:	Surface Mount
Termination Style:	Gull Wing
Size / Dimension:	Square - 0.236" x 0.266" Face x 0.169" H (6.00mm x 6.75mm x 4.30mm)

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Trimmer Potentiometers - ST5EP502 Application Field and Working Principle

Trimmer potentiometers, also known as trimpots, are deviable resistors with handy and efficient turning knobs, which make a significant difference when it comes to practical usage in a vast range of electronic equipment and projects. Featuring 3-pin terminals, these kind of components are typically used to adjust voltage signals or imagine a range of resistors in a series or parallel circuit. It is also suitable for use as a digital variable resistor in digital circuitry for pre-setting of other components.The ST5EP502 is a type of trimmer potentiometer manufactured by STMicroelectronics and it is characterized with low resistance and small form factor. It provides rotation angle of 300º and is a great choice for compact, high-accuracy applications as it fits perfectly in miniature hand-held electronic devices. For example, it is popularly used in hand-held gaming consoles or home audio products.The ST5EP502 uses metal layered type resistance elements for superior accuracy and dielectric strength. The three terminals on the trimpot are used for the connection and operation of the component. Terminal 1 is connected to the resistance element which is further connected to the slider moving portion and then connected to the terminal 3. The internal structure of the ST5EP502 includes the rotation angle of 300º with 6 stops, the detent mechanism and output resistor connected at the slider portion.There are 6 stops given in the ST5EP502 component and these form 6 resistance value grid points at 300º rotation either clockwise or in the anti-clockwise direction. These stop points provide incremental value stepping resistance points along the 300º rotation with snappy detent mechanism. As the rotation advances, the slider is drove by the detent mechanism that further forward the resistance elements to its adjacent value and then again continue to the next stop and forward the element resistance value.In order to operate the ST5EP502 trimmable resistor, it should connect between the 3 terminals and apply a voltage or a current between terminal 2 and terminal 3 and the third terminal 1 will make connection with the slider movement portion. Further, this connection will vary the resistance between terminal 2 and 3 according to the devices movement. The internal resistance winding and variable contacts will provide the resistance adaptation for the current flow between the terminals.The ST5EP502 trimmer potentiometer offers a maximum power dissipation of 5mW per transistor and features a 46-95mΩ resistance range. It is available in 4 sizes – S15, S19, S26 and S45 – which enable the component to be tailored for specific requirements, and is made of an anti-electrostatic polycarbonate. This feature prevents the component to pick up the static charges from electric fields and protects it from any potential damage.The device also includes a fully optimized seal that reduces the risk of dust contamination and splash damage to offer reliable and durable performance. In addition, the ST5EP502 trimmer potentiometer is suitable for operation in the temperature range of -40°C to +85°C and features a solder temperature of 260°C for 10 seconds, making it reliable applications in the extreme temperature range.Overall, ST5EP502 trimmer potentiometers are a great solution for compact high-accuracy applications, making them ideal for devices with limited space. The component offers a wide 300-degrees rotation angle with 6 stop positions and 46-95mΩ resistance range, ensuring consistency and accuracy at all adjustments. It features a robust design and sleek dimensions that are perfect for small electronic gadgets and toys, as well as allowing to set gain, frequency, offset and many other operations.

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